AN72268: Determination of Fluoride in Tea using a Combustion Ion Chromatography System
DescriptionThis application note demonstrates a simple combustion ion chromatography (CIC) method to determine fluoride in tea. Using the CIC system including a Mitsubishi Automatic Combustion Unit AQF-2100H system and a Thermo Scientific Dionex Integrion HPIC system, fluoride in tea is determined in 20 min (11 min if the combustion and chromatography functions are overlapped), a significant time savings over the current Chinese national method which requires more than a hour. The CIC method is sensitive (MDL=1 ppm), precise, and accurate. The only sample preparation required is to grind and dry the tea.
|Market:||Food and Beverage|
|Keywords:||IonPac AS18-4μm, Small particle column, HPIC, RFIC, CIC, Integrion, U.S. EPA, China national standard, NY659-2003, NY/T 838-2004, TN72211, AN 72268|
|Author:||Hua Yang, Daniel Khor, and Jeff Rohrer|
|Affiliation:||Thermo Fisher Scientific, Sunnyvale, CA USA|
For Research Use Only. Not for use in diagnostic procedures.